Feedback amplifier
[电] 回馈放大器
🧩 词语组成解析
🗣️ 情景例句
Robbie went to pick up the clip-on bow ties.
Robbie去拿夹上去的领结。
Sometimes the snow was so deep we could tunnel through it.
偶尔雪会积到可以造隧道那般的深度。
On her way home she bought a new pen at a shop.
回家路上，她在一家商店买了一支新钢笔。